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UNITED STATES PATENT EEicE.

CHARLES LUSTED, OF NEW YORK, N. Y.

MACHINE FOR MAKING BOLTS.

Specification forming part of Letters Patent No. 49,902, dated Septemberl2, 15565.

To all whom 'it may concern:

Be it known that I, CHARLES LUsTED, of the city, county, and State of New York, have invented a newA and Improved Machine for Making Bolts andRivets; and I do hereby declare that the following is a full, clear, andeX- act description thereof, which will enable those skilled in the artto make and use the same, reference being had to the accompanyingdrawings, forming part of this specification, in which- Figure l, SheetNo. 1, is a front elevation of my invention, partly in section 5 Fig. 2,a side elevation ofthe same; Fig. 2X, a detached plan or top view oftherotary die. Fig. 3, Sheet No. 2, is a rear elevation of the same,partly in section 5 Figs. 4, 5, and 6, detached side views of cams andyokes pertaining to the same.

Similar letters ot' reference indicate corresponding parts.

Thisinvention relates to a new and improvedv machine for making boltsand rivets; and it consists in certain novel means employed for severingthe blanks and discharging the fin-- ished bolts or rivets, ashereinafter fully shown and described, whereby the desired work may bedone in an expeditious and perfect manner, the rod being cut into piecesof the required length and the heads formed on the pieces by mechanismoperated from one and the same driving-shaft.

A represents an upright rectan gularframing, in the upper part of whicha horizontal shaft, B, is fitted, provided with a pinion, C, which gearsinto a toothed wheel, D, on a shaft, E. The wheel D is fitted loosely onthe shaft E, and is connected with it by means ot' a clutch, F, thelatter being operated by means of a lever, G. (See Figi.)

H represents a vertical cutter, which is fitted and works between guidesc a in the framing A. The upper part of the cutter-plate is providedwith a yoke, I, in which an eccentric on the shaft E works and gives, asthe shaft E is rotated, a reciprocating movement to the cutter H. Thecutter H works over a stationary upright plate, I, the latter having ahole, b, made in it for the rod from which the bolts or rivets are cutto pass through and form a bearing for the rod while being acted upon bythe cutter.

J is an adjustable gage, fitted on a horizontal rod, e, and secured atthe desired point thereon by a set-screw, d. This gage is directly inline with the hole Z1 in plate I, and it insures the rod being cut intopieces of uniform length.

K is a female die, which is secured by pins e to the lower end of asliding frame. L, the latter being fitted between guides ff in theframing A. The upper part of this sliding frame L is provided with twoyokes, M M, in which eccentrics N on the shaft E work. One of theseyokes, with its eccentric, is shown in Fig. 5. A vertical reciprocatingmotion is given the die K by means of the yokes and eccentrics abovementioned.

O is a vertical reciprocating rod, which works through the center of thefemale die K, and is operated by a yoke, P, at its upper end, in whichan eccentric, Q, on the shaft E works, (See Fig. 6,) the yoke P andeccentric Q being between the yokes M M and eccentrics N N of thesliding frame L. The eccen tries N N and Q are of such a form and placedon their shaft E in such relative position as to cause the slidingframeL and rod O to operate at diiierent times, and also to cause eachto have a period of rest at the termination of each movement. Forinstance, when the sliding frame L reaches the termination of itsdownward movement it remains stationary, while the rod Ois forced downthrough it, and when the rod O reaches the termination of its downwardmovementit remains stationary and the sliding frame L commences to rise,and when the latter reaches the termination of its upward movement itremains stationary until the rod O is raised, when the latter, in turn,remains stationary until the sliding frame is again forced down.

It represents a rotating bed or die ltted vertically in the lower partof the framing A, and having three protuberances, g, on its uppersurface, corresponding in form to the lower interior part of the femaledie K. (See Fig. l.) This bed or die R has such a position relativelywith the female die K that as the bed or die It is rotated theprotuberances g will come in line with the die K, as will be understoodby referring to Figs. 1 and 3. The bed or die It is perforatedvertically and centrally through each protuberance g, and theseperforations receive the pieces of rods on which heads are to be formedby the female die K, the interior of thelatter above thelower part whichreceives the protuberances y being ofthe form designed to be given theheads of the bolts or rivets. The bed or die R has a small rod, h,extending down centrally from its lower end, and this rod h has abevel-wheel, S, upon it, which gears into acorresponding wheel, T, onL ahorizontal shaft, U, the latter extending through the side ot' theframing and having a trilateral head or ratchet, V, upon it, as shownclearly in Fig. 2, leach angle of said head or ratchet having a hook, i,for a pawl, W, to engage with. The pawl W is at the lower end of a rod,X, which is operated by a cam, Y, at the end-of the shaft E, the pawl Whaving a spring, z, bearing against it, which spring has a tendency tokeep the pawl engaged with the head or ratchet, as shown clearlyr inFig. 2. The head or ratchet V has a retainingpawl, A', bearing againstit to prevent it from casually turning, recesses being made in V, neareach angle, to receive said pawl.

B is a vertical rod iitted in the framing A, and having a yoke, C, atits upper end, in which atappet, D,on the shalt E works. This rod Cextends down below the hed or die R, and has an arm, j, projectinghorizontally from its lower end, to which a vertical rod, 7c, isattached, said rod 7c being in line with the pert'orations in the bed ordie R. (See Fig. 3) On the upper end of the rod B' a spring, E', bears.(Shown in Figs. l and 3.)

The operation is as follows: The rods from which the bolts or rivets aremade is cut into pieces of a proper length by means of the cutter H, andthese pieces are inserted in the perforations of the bed or die R, saidpieces projecting above the upper surfaces of the protuberances g toleave a sufticient amount of' metal to form the heads. These pieces,when inserted in the bed or die R, are heated to a proper degree, and,it' they are shorter than the perforations in said bed or die, rods arefitted within the latter in order to have the pieces project a suitabledistance above the protuberances. The bed or die R is turnedinterlnittingly by means of the pawl W engaging with the head or ratchetV, and, as said head or ratchet is'of trilateral forni, a protuberance,g, is brought underneath the female die K at each upward movement of therod X. At the termination of each movement of the bed orl die R thefemale die K descends and covers the top of thev piece projecting abovethe protuberance g within it, and when the die K reaches the terminationot' its downward movement the rod O is forced down and acts upon the topof the piece of rod and forms the head of the bolt or rivet, causing theupper end of the piece to conform to the interior of the female die. Therod O then remaining stationary, the female die K rises, so as to leavethe bolt or rivet in the bed or die R, and the latter is rotated by thepawl W and head or ratchet V to bring a succeeding protuberance andpiece of rod underneath the female die K, while the bolt or rivetpreviously formed is brought over the rod k, which is forced upward bythe tappet D' ,working in the yoke C and ejects the bolt or rivet fromthe bed o r die R, the rod lo being forced down out of the bed or die Rbythe spring E', which performsits work as soon as the tappet D leavesthe prominent portion a* of' the yoke C. (See Fig. 4.)

Thus by this simple and compact machine bolts or rivets may be made veryexpeditiously and in a perfect manner. f

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. The reciprocating cutter H, in connection with thestationary perforated plate I, when said parts are constructed'as'herein described and used in' combination with theintermittingly-rotating bed or die R and reciprocating female die K, forthe purpose speciiied.

2. The rod B, operated through'the lnedium of the yoke G', tappet D',and spring E', and provided with the rod k, allv the said parts beingconstructed as herein described, and arranged in relation with theperforations of the Ibed or die R as shown, for the purpose ofdischarging the bolts or rivets from the bed or die R, as set forth. y

CHARLES LUSTED.

Witnesses:

Jas. P. HALL, WM. F. MCNAMARA.

